multipolar neuron (pre and post synaptic) Flashcards Preview

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Flashcards in multipolar neuron (pre and post synaptic) Deck (10)
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1
Q

axon

A

long threadlike part of a nerve cell, nerve impulses carried from cell body to other cells

2
Q

Nissl bodies

A

granules are of rough endoplasmic reticulum (RER) with rosettes of free ribosomes

3
Q

dendritic branches

A

create new synapses

4
Q

neurofibrils

A

Neurofibrils include neurofilaments and neurotubules, microtubules that play a role in the transport of proteins and other substances within the cytoplasm.

5
Q

axon hillock

A

last site in the soma where membrane potentials propagated from synaptic inputs are summated before being transmitted to the axon.

6
Q

initial segment of axon

A

specialized membrane region in the axon of neurons where action potentials are initiated.

7
Q

mitochondrion

A

respiration and energy production occur.

8
Q

dendrite

A

impulses received from other cells at synapses are transmitted to the cell body.

9
Q

axon terminal

A

very end of a branch of a nerve’s axon, a long slender nerve fiber that conducts electrical signals to a nerve synapse (the gap between nerve cells). The signal then moves across the synapse to another axon by means of a neurotransmitter (an electrochemical substance

10
Q

telodendria

A

An axon can divide into many branches called telodendria (Greek–end of tree). At the end of each telodendron is an axon terminal